Improvement in harness-machines



- 2 Shee tsrSheet 1.

' W. BARRY. HARNESS-MACHINE.

Patented Feb. 8,1875.

N.PE|'ERS, PHOTO-LITHOGRAPMER, WASHINGTON, D4 C 3 to a bench or othersupport.

WILLIAM BARRY, OF ROCHESTER, NEW YORK.

IMPROVEMENT m H AR wEss-MAcHlNEs;

Specification forming. part of Letters Patent No. 173,155, datedFebruary 8, 1876; application-filed April 8, 1873. l

To all whom it mag concern:

1 Be it known that L'WILLIAMBARRY, of

q the city of Rochester, in the'connty of Monroe and State of New York,have invented certain new and useful Improvements in Machines forPunching and Stitching Leather; and I do declare that the following isa. full,- clear, and exact description ofthe construction and operationof the same;

This machine is intended for stitching heavy leather, such as harness,870., where waxed threadsare used, but itis alsoada'ptedto lighter uses.sis-ts in holding the leather in-a' clamp, while the awl isintermittently fed along the length of asingle stitch at a time, andthen is made to perforate the leather, after which the threads arepassed through by hand; or, vice Versa, the punching apparatus maybe'made stationary, 'while the clamp that holds the leather may befedintermittently, all ashereinafter described.-

In the drawings, Figure 1 is a planof my machine; Fig.2,a sideelevation; Fig. 3, an endor front elevation 5 Figs. 4, 5 and 6, detailviews.

A represen tsatable, which is firmly screwed B" isa frame screwed uponthe table'and holding. the working. parts. O is theclamp for holding theleather. This clamp issimilar'toan ordinary vise -having one side,- a,stationary, while theother side, a, is jointed at b,-so asto-be openedfor inserting or removing the leather; The movable part of thecla'mpisswiveled' orjointed, as shown at as, Fig. 5, so as to. turnhorizontally, to adapt the clampto holding leather of varyingthickness-D isf'a stiff arm connected with the hingedside of the clamp.

' To the end of this arm. is connecteda link or connection, c, whichextends: to thei'en'dof a le'ver, E, Fig'.- 3. The lever E-ispivote'datd, and with itslongarm is. connected a'coiled q a p overboth th e' endo'f theshicldand the'ratch'et'i: teeth of the whee-1,1 and serves togive motion tothe' latter to teeth the carriageforwardl Tlie' spring,.orequivalent,-. a, attached-to the-standard F, by whichthe' properreaction is pro:

duced to act through the inedinmof thelever' E,;link 0,-and arm-D, topress the clamp t0- getheri- Instead of this, any equivalent arrange--ment' may be usedto close the clamp. G is a-rod connecting the end ofthe lever'E with The principle involvedconparts bywhich the punching isdone.

the treadle H, pivoted at the foot of'the I Theleather, f,issimplyj'placed intheclam'p, edge up, and in line for sewing,asshown,andas-soonas the clamped length-is punched and sewed, it is unclampedand moved forward at new length, when thesame'operation is gone throughagain, the carriage being moved back at the same time to'start anew. v

I is a carriage restingcrosswise of the frame B, and carrying the awland other working At the rear it has bearings g 'g, in which rests ashaft, h, At one end of the-shaft is a pinion; 'l, whichengages with acog-rack, j, bolted l fast-to the frameB; When the shaft isturned thepinion, engaging withthe -cog=.raek-,

- gives motion to the carriage, and feeds it forward or backward. At;the opposite end. of the-shaft is a-ratchet-wheel, K, rigidly fast:-

enedthereon, and; provided with an axial handle, 1, by which thecarriage is moved backwhen required.

Over the-rear part of the ratchet-wheel is a gage-shield, m, attached toa frame, L, i which isswiveled upon the shaft h, so asto turn up anddown freely, and-:. thereby throw the shieldlarther-forwardor back; Thehub of the-frame L has ataug or lug, it, against which reststhe-end ofgage"screw,;. o,-.for the; setting of the position of the shield, whichisdone by. hearing said tang. in, .orlletting. it

:ou't-.-v A coiled spring-,zor equivalent, is also attached to: theunder; side of the frame L I connecting it with the ca'rria'g el, to'holdthe ;shield down properly.- w l Asroc'k-arm, M, is also swiveledupon the shaft-hi, and extends upwards outside-thepe riphery of theratchet-whack and. has pi v'otedto thehead-a pa wl-m, presseddowuby'aspring,

q,.or equivalent; The p'oint rot'this pawl plays length of the stitchwill b'e' reghlated,-:there;= fore, by moving the shield 'npzto covermore or less=ofthe stroke of the pawlw in passing thrown back thereverse is the result.

surface and less upon the wheel, and when The length of the stitch thereis adjusted with great ease and exactness. At the front the carriage Ihas bearings r r, in which rests a shaft, 8. On this shaft are jointedtwo crossheads, N and 0, so arranged as to turn independently of eachother. The head N turns up and down vertically, and has a slight endmovement; but the head 0 has, in addition to the vertical movement, anend sliding movement of considerable extent upon the shaft 8, to insertand withdraw the awl, as will present- 1y be described. These headshave, respectively, arms N and O, the one carrying a gage, t, and theother the punchor awl a. The gage is simply a wire or rod, which has abent end, t, overlapping and turning" down over the outer edge of theleather, and nearly opposite the point of the awl, but leaving spaceenough for it to pass by through the leather. The object of the gage isto hold the edge of the leather in position against the pressure of theawl, and thereby insure perfect work. Something of the kind isnecessary, for the leather, of itself, has not always sufficientstiffness and rigidity to oppose the pressure of the awl and keep itsplace. The shank of the gage is passed through a vertical slot in thehead v of the arm 0, and a set-screw, w, is made to bear upon it. Byturning this set-screw up or down the distance between the gage and theawl is varied, and consequently the awl is made to enter the leathernearer to or farther from its edge, thus varying the position of theseam in the same degree. This is an important feature in my invention.The gage, therefore, in addition -to holding the leather against thepressure of the aw], gages the width of the seam from the edge, whetherthat be in a straight line or curved. This arrangement also raises thearm 0' when the arm N is raised, as will be readily seen, thereby givingmotion to the pawl by which the carriage is moved forward. Thisconnection of the arms N and 0 may be produced by other means than that,described,.

and with a similar effect. The gage is also held in position by aset-screw, :10, in the end of the arm N. and held in the end of the arm0 by the setsercw y. On the under side of the arm 0 is a fork, Z, Fig.3, which embraces the upper edge of a rock-frame, P, which is pivoted,at b b, to the end of the frame B. At the front this rock-frame has anarm, Q, Fig. 3, which arm, f, which is connected by a pitman, g,with VThe awl is simply straight,

carriage along. 011 the under side of the head O is an incline, h,which, when the said head is thrown outward, rides upon the cam-head tof a vertically-adjustable bar, T. This action causes the arm 0 to turnup, and with it the arm N, by which means free space is left for theoperator to pass the threads through the holes punched in the leather,thereby making the stitch.

Between the heads N and O is located a flat plate, V, which is pivotedto the head N, as shown at k, Fig. 1, and has an elbow end, l, whichrests against the bearing 1" of the carriage. The long arm of this plateswings free, and is connected by a spring, at, with the head in such amanner that the tendency of the spring is to throw the long end of theplate outward. The upper surface of the head 0 has a pin, n,which bearsagainst the outer cam-surface pof the plate. In the outward movement ofthe head 0 upon the shaft 8, the pin, sliding against the plate, forcesthesame in against the spring m, and withdraws the end l from contactwith the bearing 1. In the back movement of the head upon the shaft, thehead N (which also has a slight end movement) is slid endwis'e farenough for the gage 't to drop sufficiently beyond the edge of theleather for its bent end t to be sure to engage, when the pin a releasesfrom the cam-edge of the plate, the spring throws it out, and the elbowend l, coming in contact with the bearing 1' as a fulcrum, forces thehead N back upon the shaft, and thereby draws the end t of the gage incontact with the leather.

If the edges of the leather always retained their upright form, andneverspread apart or turned over, this movement would not be necess'ary; butsometimes they become spread or turned over, and it is necessary tothrow the gage far enough over to properly engage, and then draw it upso as to hold firm against the pressure of the awl. Any equivalentarrangement which will produce the same efl'ect may be used. Forinstance, an arm might be fastened to the carriage to extend outside theclamp a, with a rest and support for the edgeof the leather in front ofthe stitch, and moved along with the carriage, so as not to interferewith the sewing, with a similar effect.

I employ over the awl and gage a shield or bonnet, W, so arranged as toprevent the catching of the loops of the thread, which frequently flyupward, as the threads are drawn by the hands of the operator, and'areliable to catch on the projecting parts. tach this shield to the rods 10w, which are hinged in the bearings y y on top of the head N. By thismeans the shield may be elevated or thrown back at any time.

in this machine it will be noticed that the punching is doneautomatically, while the stitching or passing the threads through isdone by hand, and the punching is done intermittentl y by the feeding upeither of the punch- I prefer to ating apparatus or the clamp, while theother part remains stationary. Leather sewing can be done morepractically this way than by giving a constant feeding motion to theleather by running it through rollers or otherwise, as, in the lattercase, it is difficult to keep the edges of the leather in position andhold them 'properly against the pressure of the awl.

Having thus fully described my invention, what I claim as new, and,desire to secure by Letters Patent, is

1. In a machine for punching andstitching leather, the combination ofthe fixed clamp O, the carriage I, and jointed arms N and O", carryingthe gage and awl, the whole operating substantially as described.

' by the horizontal sliding of the head 0 upon the shaft, substantiallyas described.

4. The combinationof the head 0, the incline h, and adjustable cam-barT, arranged and operated substantially as described.

5. The combination of the head 0, which receives an end movement on theshaft .9, the

pivoted rock-frame P, having a flange which fits the fork z, and an arm,Q, connected with a rod reaching to the treadle, by which the motion isgiven, substantially as described.

6. The combination of the twofarms N O and the gage t, connecting thetwo arms, and

so arranged that the two arms carrying. the

gage and awl rise and fall simultaneously, substantially as described.

7. The combination of the awl u and the gage t, when arranged to restupon the opposite side of the 'leather from the entrance of the awl, andresist its pressure, substantially as described.

8. The combinationof the heads N O and the plate V, arranged to producea reaction upon the gage to draw it to place onthe leather,substantially as described.

9. In combination with the stationary jaw a, the movable jaw 00,extension D, bearing b, and swivel-bearing at, all constructed and ar-,

ranged substantially as described, for the purpose specified. I

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses. I

WM. BARRY.

Witnesses: 7

WILLIAM A. LoDER, R. F. Oseoon.

